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An electron is trapped in a potential which is well modeled by our particle in a box model, with a box of size L=1.8 nm.

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An electron is trapped in a potential which is well modeled by our "particle in a box" model, with a box of size L=1.8 nm. What is the DeBroglie wavelength of the electron when it is in the ground state of this potential? Give a numerical answer in nm. Include at least 2 significant figures

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